./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 077859a827b9835fc70ffe4bef1d8360e024e130f860bf1f8321474f6266da95 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 07:20:11,460 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 07:20:11,541 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-13 07:20:11,545 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 07:20:11,549 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 07:20:11,575 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 07:20:11,576 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 07:20:11,576 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 07:20:11,577 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 07:20:11,577 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 07:20:11,578 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 07:20:11,578 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 07:20:11,580 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 07:20:11,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 07:20:11,581 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 07:20:11,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 07:20:11,583 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 07:20:11,584 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 07:20:11,584 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 07:20:11,584 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 07:20:11,585 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 07:20:11,585 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 07:20:11,586 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 07:20:11,586 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 07:20:11,586 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 07:20:11,587 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 07:20:11,587 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 07:20:11,587 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 07:20:11,588 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 07:20:11,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 07:20:11,588 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 07:20:11,589 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 07:20:11,589 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 07:20:11,589 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 07:20:11,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 07:20:11,590 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 07:20:11,590 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 07:20:11,590 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 07:20:11,591 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 07:20:11,591 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 077859a827b9835fc70ffe4bef1d8360e024e130f860bf1f8321474f6266da95 [2024-10-13 07:20:11,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 07:20:11,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 07:20:11,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 07:20:11,872 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 07:20:11,873 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 07:20:11,874 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i [2024-10-13 07:20:13,326 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 07:20:13,755 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 07:20:13,756 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i [2024-10-13 07:20:13,795 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73b9521d2/4f04c9046da8409fb11079dcab569cd5/FLAGc0bcec90a [2024-10-13 07:20:13,811 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73b9521d2/4f04c9046da8409fb11079dcab569cd5 [2024-10-13 07:20:13,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 07:20:13,816 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 07:20:13,818 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 07:20:13,818 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 07:20:13,824 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 07:20:13,824 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:20:13" (1/1) ... [2024-10-13 07:20:13,825 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a79521f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:13, skipping insertion in model container [2024-10-13 07:20:13,825 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:20:13" (1/1) ... [2024-10-13 07:20:13,935 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 07:20:14,232 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i[4495,4508] [2024-10-13 07:20:14,242 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i[4555,4568] [2024-10-13 07:20:15,121 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,122 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,123 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,123 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,124 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,140 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,141 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,143 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,144 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,146 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,147 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,147 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,147 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,499 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,506 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,553 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,553 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 07:20:15,599 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 07:20:15,610 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i[4495,4508] [2024-10-13 07:20:15,611 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i[4555,4568] [2024-10-13 07:20:15,675 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,676 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,676 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,677 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,678 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,687 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,687 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,691 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,692 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,693 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,693 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,693 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,694 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,781 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,793 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,802 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7769-7780] [2024-10-13 07:20:15,825 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,826 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:20:15,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 07:20:15,996 INFO L204 MainTranslator]: Completed translation [2024-10-13 07:20:15,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:15 WrapperNode [2024-10-13 07:20:15,997 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 07:20:15,998 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 07:20:15,998 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 07:20:15,998 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 07:20:16,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:15" (1/1) ... [2024-10-13 07:20:16,122 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:15" (1/1) ... [2024-10-13 07:20:16,220 INFO L138 Inliner]: procedures = 680, calls = 1673, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 654 [2024-10-13 07:20:16,242 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 07:20:16,243 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 07:20:16,243 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 07:20:16,243 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 07:20:16,266 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:15" (1/1) ... [2024-10-13 07:20:16,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:15" (1/1) ... [2024-10-13 07:20:16,278 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:15" (1/1) ... [2024-10-13 07:20:16,359 INFO L175 MemorySlicer]: Split 311 memory accesses to 6 slices as follows [236, 2, 3, 55, 9, 6]. 76 percent of accesses are in the largest equivalence class. The 254 initializations are split as follows [236, 2, 1, 10, 5, 0]. The 7 writes are split as follows [0, 0, 1, 3, 1, 2]. [2024-10-13 07:20:16,359 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:15" (1/1) ... [2024-10-13 07:20:16,360 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:15" (1/1) ... [2024-10-13 07:20:16,385 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:15" (1/1) ... [2024-10-13 07:20:16,393 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:15" (1/1) ... [2024-10-13 07:20:16,409 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:15" (1/1) ... [2024-10-13 07:20:16,417 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:15" (1/1) ... [2024-10-13 07:20:16,434 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 07:20:16,435 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 07:20:16,435 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 07:20:16,435 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 07:20:16,436 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:15" (1/1) ... [2024-10-13 07:20:16,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 07:20:16,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:20:16,474 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 07:20:16,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 07:20:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 07:20:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-10-13 07:20:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-10-13 07:20:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-10-13 07:20:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-10-13 07:20:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-10-13 07:20:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-10-13 07:20:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 07:20:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 07:20:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 07:20:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 07:20:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-13 07:20:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-13 07:20:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-10-13 07:20:16,534 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-10-13 07:20:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 07:20:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 07:20:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 07:20:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 07:20:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 07:20:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 07:20:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 07:20:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-13 07:20:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-13 07:20:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-13 07:20:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-10-13 07:20:16,537 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-10-13 07:20:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 07:20:16,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 07:20:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-10-13 07:20:16,538 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-10-13 07:20:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-10-13 07:20:16,539 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-10-13 07:20:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-10-13 07:20:16,540 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-10-13 07:20:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-10-13 07:20:16,540 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-10-13 07:20:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-10-13 07:20:16,540 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-10-13 07:20:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-10-13 07:20:16,540 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-10-13 07:20:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 07:20:16,540 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 07:20:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-10-13 07:20:16,541 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-10-13 07:20:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 07:20:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-13 07:20:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-13 07:20:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-13 07:20:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-13 07:20:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-13 07:20:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-13 07:20:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-13 07:20:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-13 07:20:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-13 07:20:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-13 07:20:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-13 07:20:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-13 07:20:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-10-13 07:20:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-10-13 07:20:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-10-13 07:20:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-10-13 07:20:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 07:20:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 07:20:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 07:20:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 07:20:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-13 07:20:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-13 07:20:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-10-13 07:20:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-10-13 07:20:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 07:20:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 07:20:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 07:20:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 07:20:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-13 07:20:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-13 07:20:16,882 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 07:20:16,884 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 07:20:17,755 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2024-10-13 07:20:17,755 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 07:20:17,857 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 07:20:17,859 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 07:20:17,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:20:17 BoogieIcfgContainer [2024-10-13 07:20:17,859 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 07:20:17,861 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 07:20:17,861 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 07:20:17,864 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 07:20:17,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:20:13" (1/3) ... [2024-10-13 07:20:17,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@92a97d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:20:17, skipping insertion in model container [2024-10-13 07:20:17,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:15" (2/3) ... [2024-10-13 07:20:17,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@92a97d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:20:17, skipping insertion in model container [2024-10-13 07:20:17,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:20:17" (3/3) ... [2024-10-13 07:20:17,868 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_get_at_harness.i [2024-10-13 07:20:17,885 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 07:20:17,885 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 07:20:17,962 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 07:20:17,968 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7a918453, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 07:20:17,970 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 07:20:17,974 INFO L276 IsEmpty]: Start isEmpty. Operand has 168 states, 94 states have (on average 1.2446808510638299) internal successors, (117), 95 states have internal predecessors, (117), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-10-13 07:20:17,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-13 07:20:17,989 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:20:17,991 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:20:17,992 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:20:17,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:20:17,998 INFO L85 PathProgramCache]: Analyzing trace with hash -2007417342, now seen corresponding path program 1 times [2024-10-13 07:20:18,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:20:18,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570485966] [2024-10-13 07:20:18,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:20:18,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:20:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:18,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:18,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 07:20:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:18,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:20:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:18,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:20:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:18,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:20:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:18,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 07:20:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:18,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 07:20:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:18,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:20:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:18,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 07:20:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:18,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 07:20:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:18,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:18,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 07:20:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:18,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 07:20:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:18,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 07:20:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:18,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 07:20:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:18,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 07:20:18,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:18,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-13 07:20:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:18,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 07:20:18,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:18,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 07:20:18,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:18,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 07:20:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:18,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-13 07:20:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:19,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 07:20:19,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:19,023 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-10-13 07:20:19,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:20:19,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570485966] [2024-10-13 07:20:19,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570485966] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:20:19,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:20:19,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 07:20:19,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884509045] [2024-10-13 07:20:19,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:20:19,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 07:20:19,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:20:19,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 07:20:19,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:20:19,066 INFO L87 Difference]: Start difference. First operand has 168 states, 94 states have (on average 1.2446808510638299) internal successors, (117), 95 states have internal predecessors, (117), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-13 07:20:20,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:20:20,372 INFO L93 Difference]: Finished difference Result 348 states and 515 transitions. [2024-10-13 07:20:20,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 07:20:20,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 127 [2024-10-13 07:20:20,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:20:20,386 INFO L225 Difference]: With dead ends: 348 [2024-10-13 07:20:20,386 INFO L226 Difference]: Without dead ends: 179 [2024-10-13 07:20:20,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-13 07:20:20,398 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 96 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-13 07:20:20,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 284 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-13 07:20:20,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-10-13 07:20:20,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 162. [2024-10-13 07:20:20,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 90 states have (on average 1.1888888888888889) internal successors, (107), 91 states have internal predecessors, (107), 55 states have call successors, (55), 17 states have call predecessors, (55), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-10-13 07:20:20,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 215 transitions. [2024-10-13 07:20:20,469 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 215 transitions. Word has length 127 [2024-10-13 07:20:20,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:20:20,469 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 215 transitions. [2024-10-13 07:20:20,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-13 07:20:20,471 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 215 transitions. [2024-10-13 07:20:20,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-13 07:20:20,474 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:20:20,474 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:20:20,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 07:20:20,475 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:20:20,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:20:20,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1834774846, now seen corresponding path program 1 times [2024-10-13 07:20:20,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:20:20,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412879157] [2024-10-13 07:20:20,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:20:20,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:20:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:20,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:20,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:20,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 07:20:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:20,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:20:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:20,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:20:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:20,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:20:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:20,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 07:20:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:21,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 07:20:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:21,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 07:20:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:21,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 07:20:21,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:21,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 07:20:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:21,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:21,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 07:20:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:21,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 07:20:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:21,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-13 07:20:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:21,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 07:20:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:21,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 07:20:21,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:21,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-13 07:20:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:21,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 07:20:21,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:21,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 07:20:21,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:21,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 07:20:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:21,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-13 07:20:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:21,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 07:20:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:21,193 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-10-13 07:20:21,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:20:21,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412879157] [2024-10-13 07:20:21,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412879157] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:20:21,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47960401] [2024-10-13 07:20:21,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:20:21,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:20:21,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:20:21,198 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:20:21,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 07:20:21,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:21,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 2229 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 07:20:21,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:20:21,791 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-10-13 07:20:21,791 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:20:21,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47960401] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:20:21,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:20:21,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-10-13 07:20:21,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061114675] [2024-10-13 07:20:21,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:20:21,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 07:20:21,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:20:21,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 07:20:21,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-10-13 07:20:21,795 INFO L87 Difference]: Start difference. First operand 162 states and 215 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-10-13 07:20:22,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:20:22,113 INFO L93 Difference]: Finished difference Result 300 states and 404 transitions. [2024-10-13 07:20:22,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 07:20:22,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 127 [2024-10-13 07:20:22,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:20:22,117 INFO L225 Difference]: With dead ends: 300 [2024-10-13 07:20:22,117 INFO L226 Difference]: Without dead ends: 164 [2024-10-13 07:20:22,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-10-13 07:20:22,119 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 47 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 07:20:22,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 642 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 07:20:22,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-10-13 07:20:22,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2024-10-13 07:20:22,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 91 states have (on average 1.1868131868131868) internal successors, (108), 93 states have internal predecessors, (108), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (58), 53 states have call predecessors, (58), 53 states have call successors, (58) [2024-10-13 07:20:22,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 221 transitions. [2024-10-13 07:20:22,144 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 221 transitions. Word has length 127 [2024-10-13 07:20:22,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:20:22,146 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 221 transitions. [2024-10-13 07:20:22,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-10-13 07:20:22,147 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 221 transitions. [2024-10-13 07:20:22,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-13 07:20:22,149 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:20:22,153 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:20:22,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 07:20:22,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:20:22,355 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:20:22,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:20:22,355 INFO L85 PathProgramCache]: Analyzing trace with hash 977830654, now seen corresponding path program 1 times [2024-10-13 07:20:22,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:20:22,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625229159] [2024-10-13 07:20:22,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:20:22,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:20:22,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:22,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:22,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 07:20:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:22,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:20:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:20:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:20:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 07:20:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:20:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 07:20:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 07:20:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 07:20:23,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:20:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-13 07:20:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-13 07:20:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:20:23,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:23,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-13 07:20:23,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 07:20:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-13 07:20:23,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-13 07:20:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-13 07:20:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:20:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:20:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-13 07:20:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-13 07:20:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,305 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2024-10-13 07:20:23,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:20:23,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625229159] [2024-10-13 07:20:23,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625229159] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:20:23,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718416266] [2024-10-13 07:20:23,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:20:23,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:20:23,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:20:23,308 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:20:23,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 07:20:23,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:23,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 2499 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 07:20:23,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:20:24,033 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-10-13 07:20:24,034 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:20:24,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718416266] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:20:24,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:20:24,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-10-13 07:20:24,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606536553] [2024-10-13 07:20:24,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:20:24,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 07:20:24,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:20:24,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 07:20:24,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-13 07:20:24,040 INFO L87 Difference]: Start difference. First operand 164 states and 221 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-13 07:20:24,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:20:24,494 INFO L93 Difference]: Finished difference Result 264 states and 355 transitions. [2024-10-13 07:20:24,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 07:20:24,494 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 153 [2024-10-13 07:20:24,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:20:24,497 INFO L225 Difference]: With dead ends: 264 [2024-10-13 07:20:24,498 INFO L226 Difference]: Without dead ends: 164 [2024-10-13 07:20:24,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-10-13 07:20:24,499 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 48 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 07:20:24,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 809 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 07:20:24,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-10-13 07:20:24,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2024-10-13 07:20:24,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 91 states have (on average 1.1868131868131868) internal successors, (108), 93 states have internal predecessors, (108), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 53 states have call predecessors, (55), 53 states have call successors, (55) [2024-10-13 07:20:24,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 218 transitions. [2024-10-13 07:20:24,524 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 218 transitions. Word has length 153 [2024-10-13 07:20:24,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:20:24,524 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 218 transitions. [2024-10-13 07:20:24,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-13 07:20:24,525 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 218 transitions. [2024-10-13 07:20:24,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-10-13 07:20:24,527 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:20:24,527 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:20:24,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 07:20:24,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-13 07:20:24,735 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:20:24,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:20:24,737 INFO L85 PathProgramCache]: Analyzing trace with hash 525848945, now seen corresponding path program 2 times [2024-10-13 07:20:24,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:20:24,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543854752] [2024-10-13 07:20:24,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:20:24,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:20:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 07:20:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:20:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:20:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:20:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 07:20:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:20:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 07:20:25,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 07:20:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 07:20:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:20:25,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:25,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-13 07:20:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-13 07:20:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:20:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-13 07:20:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 07:20:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-13 07:20:25,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:20:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-13 07:20:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-13 07:20:25,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-13 07:20:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-13 07:20:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 07:20:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-13 07:20:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:25,770 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2024-10-13 07:20:25,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:20:25,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543854752] [2024-10-13 07:20:25,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543854752] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:20:25,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394807574] [2024-10-13 07:20:25,771 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 07:20:25,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:20:25,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:20:25,773 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:20:25,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 07:20:26,332 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 07:20:26,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 07:20:26,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 2634 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-13 07:20:26,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:20:26,526 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2024-10-13 07:20:26,527 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:20:26,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394807574] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:20:26,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:20:26,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-10-13 07:20:26,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589630788] [2024-10-13 07:20:26,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:20:26,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 07:20:26,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:20:26,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 07:20:26,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-10-13 07:20:26,530 INFO L87 Difference]: Start difference. First operand 164 states and 218 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-13 07:20:26,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:20:26,990 INFO L93 Difference]: Finished difference Result 253 states and 332 transitions. [2024-10-13 07:20:26,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 07:20:26,992 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 166 [2024-10-13 07:20:26,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:20:26,994 INFO L225 Difference]: With dead ends: 253 [2024-10-13 07:20:26,994 INFO L226 Difference]: Without dead ends: 162 [2024-10-13 07:20:26,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-10-13 07:20:26,996 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 53 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 07:20:26,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1148 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 07:20:26,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-10-13 07:20:27,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-10-13 07:20:27,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 90 states have (on average 1.1777777777777778) internal successors, (106), 91 states have internal predecessors, (106), 55 states have call successors, (55), 17 states have call predecessors, (55), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-10-13 07:20:27,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 214 transitions. [2024-10-13 07:20:27,019 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 214 transitions. Word has length 166 [2024-10-13 07:20:27,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:20:27,020 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 214 transitions. [2024-10-13 07:20:27,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-13 07:20:27,021 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 214 transitions. [2024-10-13 07:20:27,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-10-13 07:20:27,023 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:20:27,023 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:20:27,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-13 07:20:27,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:20:27,224 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:20:27,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:20:27,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1164223571, now seen corresponding path program 1 times [2024-10-13 07:20:27,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:20:27,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108321234] [2024-10-13 07:20:27,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:20:27,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:20:27,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:27,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:27,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 07:20:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:27,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:20:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:27,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:20:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:20:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 07:20:28,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:20:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 07:20:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 07:20:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 07:20:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:20:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-13 07:20:28,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-13 07:20:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:20:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-13 07:20:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 07:20:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-13 07:20:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:20:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-13 07:20:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-13 07:20:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-13 07:20:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-13 07:20:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:20:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-13 07:20:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-13 07:20:28,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:20:28,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:28,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:28,495 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-10-13 07:20:28,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:20:28,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108321234] [2024-10-13 07:20:28,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108321234] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:20:28,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:20:28,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 07:20:28,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363299108] [2024-10-13 07:20:28,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:20:28,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 07:20:28,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:20:28,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 07:20:28,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-13 07:20:28,498 INFO L87 Difference]: Start difference. First operand 162 states and 214 transitions. Second operand has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (26), 5 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2024-10-13 07:20:30,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:20:30,072 INFO L93 Difference]: Finished difference Result 289 states and 383 transitions. [2024-10-13 07:20:30,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 07:20:30,072 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (26), 5 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 192 [2024-10-13 07:20:30,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:20:30,075 INFO L225 Difference]: With dead ends: 289 [2024-10-13 07:20:30,075 INFO L226 Difference]: Without dead ends: 188 [2024-10-13 07:20:30,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-10-13 07:20:30,076 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 88 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-13 07:20:30,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 811 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-13 07:20:30,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-10-13 07:20:30,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 177. [2024-10-13 07:20:30,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 99 states have (on average 1.1717171717171717) internal successors, (116), 100 states have internal predecessors, (116), 60 states have call successors, (60), 17 states have call predecessors, (60), 17 states have return successors, (59), 59 states have call predecessors, (59), 58 states have call successors, (59) [2024-10-13 07:20:30,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 235 transitions. [2024-10-13 07:20:30,095 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 235 transitions. Word has length 192 [2024-10-13 07:20:30,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:20:30,096 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 235 transitions. [2024-10-13 07:20:30,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (26), 5 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2024-10-13 07:20:30,097 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 235 transitions. [2024-10-13 07:20:30,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-10-13 07:20:30,101 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:20:30,101 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:20:30,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 07:20:30,101 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:20:30,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:20:30,102 INFO L85 PathProgramCache]: Analyzing trace with hash 280714581, now seen corresponding path program 1 times [2024-10-13 07:20:30,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:20:30,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396697885] [2024-10-13 07:20:30,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:20:30,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:20:30,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:30,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:30,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 07:20:30,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:30,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:20:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:30,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:20:30,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:30,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:20:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 07:20:31,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:20:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 07:20:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 07:20:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 07:20:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:20:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-13 07:20:31,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-13 07:20:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:20:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-13 07:20:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 07:20:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-13 07:20:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:20:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-13 07:20:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-13 07:20:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-13 07:20:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-13 07:20:31,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:20:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:31,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-13 07:20:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-13 07:20:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:20:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:31,378 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-10-13 07:20:31,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:20:31,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396697885] [2024-10-13 07:20:31,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396697885] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:20:31,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:20:31,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 07:20:31,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925168950] [2024-10-13 07:20:31,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:20:31,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 07:20:31,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:20:31,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 07:20:31,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-13 07:20:31,382 INFO L87 Difference]: Start difference. First operand 177 states and 235 transitions. Second operand has 11 states, 10 states have (on average 5.0) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (26), 5 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-13 07:20:32,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:20:32,879 INFO L93 Difference]: Finished difference Result 302 states and 404 transitions. [2024-10-13 07:20:32,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 07:20:32,880 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (26), 5 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 192 [2024-10-13 07:20:32,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:20:32,882 INFO L225 Difference]: With dead ends: 302 [2024-10-13 07:20:32,882 INFO L226 Difference]: Without dead ends: 207 [2024-10-13 07:20:32,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-10-13 07:20:32,883 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 140 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-13 07:20:32,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 864 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-13 07:20:32,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-10-13 07:20:32,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 183. [2024-10-13 07:20:32,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 103 states have internal predecessors, (119), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (62), 62 states have call predecessors, (62), 61 states have call successors, (62) [2024-10-13 07:20:32,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 244 transitions. [2024-10-13 07:20:32,905 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 244 transitions. Word has length 192 [2024-10-13 07:20:32,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:20:32,906 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 244 transitions. [2024-10-13 07:20:32,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (26), 5 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-13 07:20:32,906 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 244 transitions. [2024-10-13 07:20:32,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-10-13 07:20:32,908 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:20:32,909 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:20:32,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 07:20:32,909 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:20:32,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:20:32,909 INFO L85 PathProgramCache]: Analyzing trace with hash 959986835, now seen corresponding path program 1 times [2024-10-13 07:20:32,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:20:32,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404999699] [2024-10-13 07:20:32,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:20:32,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:20:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 07:20:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:20:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:20:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:20:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 07:20:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:20:34,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:34,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 07:20:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 07:20:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 07:20:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 07:20:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-13 07:20:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-13 07:20:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:20:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-13 07:20:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-13 07:20:34,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-13 07:20:34,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:20:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-13 07:20:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-13 07:20:34,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-13 07:20:34,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-13 07:20:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:20:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-13 07:20:34,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-13 07:20:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:20:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:20:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:34,608 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-10-13 07:20:34,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:20:34,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404999699] [2024-10-13 07:20:34,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404999699] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:20:34,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201084226] [2024-10-13 07:20:34,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:20:34,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:20:34,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:20:34,611 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:20:34,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 07:20:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:35,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 2898 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 07:20:35,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:20:35,396 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-10-13 07:20:35,397 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:20:35,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201084226] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:20:35,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:20:35,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 9 [2024-10-13 07:20:35,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853618278] [2024-10-13 07:20:35,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:20:35,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 07:20:35,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:20:35,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 07:20:35,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-13 07:20:35,403 INFO L87 Difference]: Start difference. First operand 183 states and 244 transitions. Second operand has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2024-10-13 07:20:35,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:20:35,680 INFO L93 Difference]: Finished difference Result 284 states and 377 transitions. [2024-10-13 07:20:35,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 07:20:35,681 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 192 [2024-10-13 07:20:35,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:20:35,683 INFO L225 Difference]: With dead ends: 284 [2024-10-13 07:20:35,683 INFO L226 Difference]: Without dead ends: 162 [2024-10-13 07:20:35,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-13 07:20:35,684 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 0 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 07:20:35,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 699 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 07:20:35,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-10-13 07:20:35,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-10-13 07:20:35,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 90 states have (on average 1.1555555555555554) internal successors, (104), 91 states have internal predecessors, (104), 55 states have call successors, (55), 17 states have call predecessors, (55), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-10-13 07:20:35,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 212 transitions. [2024-10-13 07:20:35,707 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 212 transitions. Word has length 192 [2024-10-13 07:20:35,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:20:35,708 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 212 transitions. [2024-10-13 07:20:35,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2024-10-13 07:20:35,709 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 212 transitions. [2024-10-13 07:20:35,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-10-13 07:20:35,711 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:20:35,711 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:20:35,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-13 07:20:35,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:20:35,912 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:20:35,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:20:35,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1972069036, now seen corresponding path program 1 times [2024-10-13 07:20:35,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:20:35,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359910775] [2024-10-13 07:20:35,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:20:35,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:20:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 07:20:36,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1681098393] [2024-10-13 07:20:36,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:20:36,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:20:36,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:20:36,959 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:20:36,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 07:20:43,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:20:43,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 2938 conjuncts, 191 conjuncts are in the unsatisfiable core [2024-10-13 07:20:43,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:20:43,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-10-13 07:20:43,776 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 07:20:43,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2024-10-13 07:20:44,563 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 07:20:44,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2024-10-13 07:20:45,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-13 07:20:45,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 55 [2024-10-13 07:20:54,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-13 07:20:55,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 55 [2024-10-13 07:21:12,623 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 246 proven. 31 refuted. 1 times theorem prover too weak. 114 trivial. 0 not checked. [2024-10-13 07:21:12,623 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 07:21:26,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2024-10-13 07:21:27,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:21:27,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359910775] [2024-10-13 07:21:27,958 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 07:21:27,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681098393] [2024-10-13 07:21:27,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681098393] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:21:27,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:21:27,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2024-10-13 07:21:27,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111329526] [2024-10-13 07:21:27,959 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 07:21:27,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-10-13 07:21:27,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:21:27,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-10-13 07:21:27,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=2356, Unknown=1, NotChecked=0, Total=2550 [2024-10-13 07:21:27,962 INFO L87 Difference]: Start difference. First operand 162 states and 212 transitions. Second operand has 38 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 13 states have call successors, (34), 4 states have call predecessors, (34), 9 states have return successors, (32), 12 states have call predecessors, (32), 12 states have call successors, (32) [2024-10-13 07:21:35,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]